In this work, estimates of turbulence were made from pulsatile flow laser Doppler velocimetry measurements using traditional phase averaging and averaging after the removal of cyclic variation. These estimates were compared with estimates obtained from steady leakage flow LDV measurements and an analytical method. The results of these studies indicate that leakage jets which are free and planar in shape may be more unstable than other leakage jets, and that cyclic variation does not cause a gross overestimation of the Reynolds stresses at large distances from the leakage jet orifice.
An Analysis of Turbulent Shear Stresses in Leakage Flow Through a Bileaflet Mechanical Prostheses
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division February 5, 2001; revised manuscript received November 5, 2001. Associate Editor: C. R. Ethies.
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Travis, B. R., Leo , H. L., Shah, P. A., Frakes , D. H., and Yoganathan, A. P. (March 29, 2002). "An Analysis of Turbulent Shear Stresses in Leakage Flow Through a Bileaflet Mechanical Prostheses ." ASME. J Biomech Eng. April 2002; 124(2): 155–165. https://doi.org/10.1115/1.1448519
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